Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 107595 pages reserved BUG: unable to handle kernel NULL pointer dereference at 00000000000008f4 PGD 800000019faff067 P4D 800000019faff067 PUD 1900fa067 PMD 0 Oops: 0002 [#1] SMP PTI CPU: 0 PID: 5027 Comm: kworker/0:3 Not tainted 4.18.0-rc5+ #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: (null) (events) RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 RSP: 0018:ffff88019573fa18 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff88019573fa28 R08: 0000000000000000 R09: 00000000000008f4 R10: 0000000000000000 R11: ffffffff81363150 R12: ffff88013d13a680 R13: 0000000000000000 R14: 0000000000000292 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 syz-executor6 invoked oom-killer: gfp_mask=0x6202c2(GFP_HIGHUSER|__GFP_NOWARN), nodemask=(null), order=0, oom_score_adj=0 CR2: 00000000000000b0 CR3: 000000016f5c0000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: kmsan_thread_create+0x58/0xb0 mm/kmsan/kmsan_hooks.c:30 __kthread_create_on_node+0x6e5/0x7f0 kernel/kthread.c:339 syz-executor6 cpuset= kthread_create_on_node+0x278/0x2c0 kernel/kthread.c:375 create_worker+0x7a0/0x1040 kernel/workqueue.c:1813 syz6 mems_allowed=0 maybe_create_worker kernel/workqueue.c:1972 [inline] manage_workers kernel/workqueue.c:2024 [inline] worker_thread+0x876/0x2490 kernel/workqueue.c:2268 kthread+0x473/0x4b0 kernel/kthread.c:247 CPU: 1 PID: 23754 Comm: syz-executor6 Not tainted 4.18.0-rc5+ #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415 Call Trace: Modules linked in: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1e0 lib/dump_stack.c:113 Dumping ftrace buffer: dump_header+0x2cc/0x16f0 mm/oom_kill.c:432 (ftrace buffer empty) CR2: 00000000000008f4 ---[ end trace f47e02da5da1741c ]--- oom_kill_process+0x339/0x2060 mm/oom_kill.c:867 RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: c1 out_of_memory+0x1760/0x1e10 mm/oom_kill.c:1081 e9 03 __alloc_pages_may_oom mm/page_alloc.c:3531 [inline] __alloc_pages_slowpath mm/page_alloc.c:4243 [inline] __alloc_pages_nodemask+0x5394/0x6320 mm/page_alloc.c:4398 40 0f alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093 b6 f6 alloc_pages include/linux/gfp.h:494 [inline] __vmalloc_area_node mm/vmalloc.c:1689 [inline] __vmalloc_node_range+0x8bf/0x1170 mm/vmalloc.c:1754 48 b8 __vmalloc_node mm/vmalloc.c:1799 [inline] __vmalloc_node_flags_caller+0x12b/0x140 mm/vmalloc.c:1821 01 01 01 01 01 01 kvmalloc_node mm/util.c:432 [inline] kvmalloc include/linux/mm.h:557 [inline] vmemdup_user+0x1c8/0x430 mm/util.c:186 01 01 48 0f __sctp_setsockopt_connectx net/sctp/socket.c:1350 [inline] sctp_setsockopt_connectx net/sctp/socket.c:1399 [inline] sctp_setsockopt+0x2458/0x12d00 net/sctp/socket.c:4234 af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 sock_common_setsockopt+0x13b/0x170 net/core/sock.c:3040 49 89 f9 40 __sys_setsockopt+0x496/0x540 net/socket.c:1911 88 f0 __do_sys_setsockopt net/socket.c:1922 [inline] __se_sys_setsockopt net/socket.c:1919 [inline] __x64_sys_setsockopt+0x15c/0x1c0 net/socket.c:1919 48 89 d1 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:290 aa 4c entry_SYSCALL_64_after_hwframe+0x63/0xe7 89 c8 RIP: 0033:0x455ab9 c3 90 Code: 49 89 Bad RIP value. fa 40 RSP: 002b:00007fc31f4b3c68 EFLAGS: 00000246 0f b6 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fc31f4b46d4 RCX: 0000000000455ab9 ce 48 RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000013 b8 01 RBP: 000000000072bea0 R08: 000000007360a261 R09: 0000000000000000 01 01 R10: 00000000200000c0 R11: 0000000000000246 R12: 00000000ffffffff 01 01 R13: 00000000004c7570 R14: 00000000004d2880 R15: 0000000000000000 01 Mem-Info: RSP: 0018:ffff88019573fa18 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff88019573fa28 R08: 0000000000000000 R09: 00000000000008f4 R10: 0000000000000000 R11: ffffffff81363150 R12: ffff88013d13a680 R13: 0000000000000000 R14: 0000000000000292 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 active_anon:76103 inactive_anon:2636 isolated_anon:0 active_file:6 inactive_file:16 isolated_file:10 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:3540 slab_unreclaimable:12026 mapped:57375 shmem:2642 pagetables:796 bounce:0 free:15309 free_pcp:268 free_cma:0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000b0 CR3: 000000016f5c0000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600